diff --git a/lib/ace/editor.js b/lib/ace/editor.js
index 20f0fb69..1a8873dc 100644
--- a/lib/ace/editor.js
+++ b/lib/ace/editor.js
@@ -1678,8 +1678,11 @@ var Editor = function(renderer, session) {
      **/
     this.centerSelection = function() {
         var range = this.getSelectionRange();
-        var line = Math.floor(range.start.row + (range.end.row - range.start.row) / 2);
-        this.renderer.scrollToLine(line, true);
+        var pos = {
+            row: Math.floor(range.start.row + (range.end.row - range.start.row) / 2),
+            column: Math.floor(range.start.column + (range.end.column - range.start.column) / 2)
+        }
+        this.renderer.alignCursor(pos, 0.5);
     };
 
     /** related to: Selection.getCursor